Tascam CG-1000 Master Clock Generator

The Tascam CG-1000 Master Clock Generator is based on a high-precision OCXO – Oven Controlled Crystal Oscillator – with jitter management and glitch-free relocking for the best clock precision available, ideal for recording studios, sound engineers and musicians.

The Tascam CG-1000 Master Clock Generator's internal clock employs the high-precision OCXO that is not impacted by environment temperature. The Tascam CG-1000 employs a high-precision OCXO (oven-controlled crystal oscillator) that boasts a clock frequency precision of ±0.01ppm and a frequency stability of ±0.005ppm per day. The jitter management circuit developed by TASCAM reduces external clock jitters, enabling a stable clock signal to video and word outputs. A glitch-free relock circuit maintains a sustained clock phase even during clock dropouts and recovery, thus effectively preventing noise and skipping from occurring, delivering high reliability and stability to users.

Easily Check Conditions if Problems Occur Through Logging and GPO Parallel Output
The Tascam CG-1000 also equips 12 word clock outputs, two AES3/11 and two S/PDIF digital outputs, enabling the construction of large-scale synchronization systems. Furthermore, it is compatible with 2×Fs, 4×Fs, and 256×Fs outputs, as well as Pro Tools and other DAW systems. The Tascam CG-1000 is developed so that the cause of any malfunctions can be investigated during maintenance when problem occurs. The analyzer function that measures input frequency are all included, supporting troubleshooting should a problem occurs, while the word clock’s output level can be adjusted to different levels, allowing for optimum signal levels to be supplied to connecting equipment. As another function that supports the detection of problems, a logging function is also included.

User Maintenance Enabled by the Self-Calibration Functions Via External Oscillators
Since crystal oscillators change over time, regular calibration is necessary in order to keep the oscillator in its best condition. The Tascam CG-1000 is equipped with a self-calibration function, enabling users to perform maintenance through easy operations. The design takes careful measures to attain durability, including the usage of the nut-coupling Amphenol BNC connectors that are extremely resistant against pulling and twisting, and independent circuit boards for each connector that prevent contact failures caused by twisting. TASCAM’s accumulated experience and know-how in digital synchronization technology through its development of professional equipment has been refined to create products specialized in clock synchronization. The Tascam CG-1000 is a lineup of professional-level master clock generators that was the result of an exhaustive injection of TASCAM technology.

Internal Clock Uses a High-Precision OCXO that is Not Influenced by the Temperature of the Environment
The crystal oscillator is the heart of the clock generator, In the CG-1000, an OCXO (oven-controlled crystal oscillator) is used for its high precision, and the fact it is not influenced by the temperature of the environment. Boasting a clock frequency precision of 0.01 ppm, which exceeds that of a TCXO (temperature-compensated crystal oscillator), this unit is key in the creation of high-precision synchronization systems - with word output frequency stability of ±0.005ppm or less per day.

Input Connector that Supports 10MHz Signal – Allowing the Creation of Systems with Even Higher Precision
An external input connector that supports a 10MHz signal enables the Tascam CG-1000 to be connected to a rubidium clock or GPS clock for even higher precision.

Abundant Input and Output Connectors Support Use in Large-scale Audio Synchronization Systems
The Tascam CG-1000 features numerous output connectors, including 12 word clock outputs. In addition to 12 word clock outputs, the digital outputs include 2 AES3/AES11 and 2 S/PDIF outputs, making this unit useful for large-scale audio synchronization systems, and a wide variety of other applications. Of the 12 word outputs, two also support ×2Fs, ×4Fs and ×256Fs output – enabling them to be used in systems with ProTools and other DAW software.

Designed for Durability
Durable nut-coupling Amphenol BNC connectors - Since the Amphenol BNC connectors use nuts for coupling, they are extremely resistant to pulling, twisting and multiple connect-disconnect cycles. Each connector has an independent circuit board to prevent contact failures due to twisting and repeated use. The construction uses a single circuit board for each connector. This provides excellent resistance to the twisting and pulling of cables and suppresses interference between connectors.

Tascam CG-1000 Master Clock Generator Features

• Internal clock uses a high-precision OCXO (oven-controlled crystal oscillator) that is not influenced by the temperature of the environment
• External input connector that supports 10MHz, allowing creation of systems with even higher precision
• Jitter management circuit provides stable clock
• Glitch-free relocking circuit prevents noise and skipping during clock dropouts and recovery
• Numerous output connectors, including (12) word clock outputs, enabling the use in large-scale audio synchronization systems
• AES3 and AES11 signals can also be used for external master clock input sources
• Analyzer function that can measure input frequencies
• Optimal levels can be provided to other devices by adjusting wordclock output levels
• Self-calibration function using an external oscillator (Atomic/GPS 10MHz, GPS PPS)
• Use of the self-calibration function requires the use of a separate PPS-output 10MHz oscillator with a built-in GPS antenna
• Word clock performance up to 192 kHz
• Up to (4) system settings can be saved to buttons for recall, and saved settings can be imported and exported via USB
• Durable nut-coupling BNC connectors made by Amphenol
• Independent circuit boards for each connector prevents contact failures due to twisting
• Three-prong IEC power cable included
• Panel-lock switch can be used to prevent inadvertent changes to unit operation
• 128x64-pixel organic EL display with a wide viewing angle
• Firmware updates possible using the USB port
• EIA 1U rack mount size
• RoHS-compliant product

Tascam CG-1000 Master Clock Generator Specifications

• Inputs and Outputs:
  • WORD/EXT INPUTS:
    • Connector Type: BNC
    • Input Level: 0.5-5.0 Vp-p
    • Input Impedance: 75/50 O (Can Set to 75/50/OFF in Menu)
    • Supported Frequencies:
      • WORD CLOCK: 32/44.1/48/88.2/96/176.4/192 kHz (4/-0.1/0.0/+0.1/+4% PULL UP/DOWN Supported Only When 48/96/192 kHz Selected)
      • ATOM: 10.0 MHz
      • GPS: 10.0 MHz
    • Permissible Frequency Deviation: ±50 ppm
  • AES3/11 INPUT:
    • Connector Type: XLR-3-31 (1: GND, 2: HOT, 3: COLD)
    • Input Level: 0.2-10 Vp-p
    • Input Impedance: 110 O
    • Format: AES11-2003, AES3-2003, IEC60958-4
    • Supported Frequencies: 32/44.1/48/88.2/96/176.4/192 kHz (-4/-0.1/0.0/+0.1/+4% PULL UP/DOWN Supported Only When 48/96/192 kHz Selected)
    • Permissible Frequency Deviation: ±50 ppm
  • CALIBRATION INPUT:
    • Connector Type: BNC
    • Input Level: 0.5-5.0 Vp-p
    • Input Impedance: 50 O (Can Turn ON/OFF in Menu)
    • Supported Frequencies:
      • ATOM: 10.0 MHz
      • GPS: 10.0 MHz
  • PPS WORD OUTPUTS:
    • Connector Type: BNC connector
    • Output Level: 1.0-3.5 Vp-p (Can Set by 0.5V Steps in Menu)
    • Output Impedance: 75 O
    • Supported Frequencies: 32/44.1/48/88.2/96/176.4/192 kHz 11.2896/12.288 MHz (Super Clock, Only Connectors 11/12) (-4/-0.1/0.0/+0.1/+4% PULL UP/DOWN Supported Only When 48/96/192 kHz Selected)
  • AES3/11 OUTPUTS:
    • Connector Type: XLR-3-32 (1: GND, 2: HOT, 3: COLD)
    • Output Level: 2.5 Vp-p
    • Output Impedance: 110 O
    • Format: AES11-2003, AES3-2003, IEC60958-4
    • Supported Frequencies: 32/44.1/48/88.2/96/176.4/192 kHz (-4/-0.1/0.0/+0.1/+4%
    • PULL UP/DOWN: Supported Only When 48/96/192 kHz Selected)
  • S/PDIF OUTPUTS:
    • Connector type: RCA Pin Jack
    • Output Level: 0.5 Vp-p
    • Output Impedance: 75 O
    • Format: IEC60958-3 (S/PDIF)
    • Supported frequencies: 32/44.1/48/88.2/96/176.4/192 kHz
• Performance:
  • Internal Oscillator Type: OCXO (Oven-Controlled Crystal Oscillator)
  • Permitted Frequency Deviation: ±0.01 ppm (Adjusted Value When Shipped New from the factory)
  • Frequency Temperature Characteristics: ±0.05 ppm (0 to 40°C)
  • Long-Term Frequency Stability: ±0.005 ppm (daily) ±0.5 ppm (Annually)
• General:
  • Power: AC100 V–240 V, 50/60Hz
  • Power Consumption: 10 W
  • External Dimensions: 483 x 45 x 310mm (W × H × D)
  • Weight: 3.1 Kg (6.8 lb)
  • Operating Temperature Range: 0–40°C (32–104 ?F)

Tascam CG-1000 Master Clock Generator Includes

• 1 x Tascam CG-1000 Master Clock Generator
• 1 x Power Cord
• 1 x Rackmount Screw Kit
• 1 x Owner’s Manual
• 1 Year Warranty